Scale



J. HOPKINSON.

GRINDER DEvxcE FOR MEAT sLlcERs.

A PPLlCATlON FILED )UNE 28. |917.

Patented July 8, 1919.

in position to grind -ried by a bracket 31 projecting JOSEPH 'HorxmsoiePATENT oFFIoE.

OF DAYTON, OHIO, ASSIGNOR TO THE COMPUTING SCALE COMPANY, 0F DAYTON,OHIO, A CORPORATION OF OHIO.

GRINDER DEVICE FOB MEAT-SLICERS..

To all whom, 'it may concern:

Be is known that I, JosnrH HorxiNsoN, a citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Grinder Devices forMeat-Slicers. of which the following is a full, clear, and exactdescription.

This invention relates to improvements 1n grinder devices for meatSlicers.

In the prior copending application of Joseph Hopkinson and Felix Thomas,Ser. No. 106,780, filed .lune 30th. 1916, there is shown an improvedgrimler box adapted to contain and support knife grinding devices acircular knife on a meat sl'icer. In the mounting of this box on theslicer base it has been found ditlicult to properly aline the box sothat the grinders are at the exact grinding angle to the knife. Thepresent invention has for its object the improvement of the *formerdevice by the provision of a swiveled support for the grinder arbor-s.These` swivels permlt the grinder box to be mounted upon the base of themachine without exact setting and provide means for independentlysetting the grinder arbor to the exact desired angle.

Other objects will be pointed out 1n detail in the accompanyingspecification,

In the drawings;

Figure 1 is a side view of a portion of a slicing machine showing therelation ofv the grinder box to the knife.

Fig. 2 shows a cross section taken on line 2-2 of Fig. 1.

Fig. 3 shows a cross section taken on line 3-3 of Fig. 1.

In more detail 13 is a concave-convex circular knife journaled upon apedestal 14. 33 is the grinder box carried by a bracket 34 which 1sjournaled upon a pintle 32 carfrom the base of the machine. As in theprevious construction the box 33 is adapted to be swung about pint-le 32to permit the grinders in the inside of the box to be cleaned. 37

is a removable cover for the box, which i cover is removed when cleaningthe grinders. Inside the box are two abrasive grinder wheels. grinder isthe sharpening grinder and 61 the bur removing grinder.' These grinderwheels are fixedly mounted upon arbors 70 one of which is shown in ig.2. Arbor 70 is journaled in ball bearings Specification of LettersPatent. Application led June 28, 1917. Serial No. 177,441;

position.

Patented J Illy 8, 1919.v

71 which are carried by an adjlustable screwthreaded sleeve 72. A nut73' is providedV on the end of arbor 70 so that the bearings may beadjusted. In order that the grinding wheels 60 and 61 may properly alinewith knife which are to be groundit is necessary that their arbor shaftsextend ina particular direction with respect to both the grinder box andthe knife. With the former construction I provide means for making theseadjustments. These parts will now be described.

Sleeve 72 is exteriorly threaded to receive the inside threads of asupplementary sleeve 74, which sleeve on its inner end is provided witha protuberance 74a having a ortion thereof shaped spherically to takento a spherical concave seat 75 in the inner wall of the grinder box. Acomplementary spherical convex seat 76 on the outer wall of the boxcoacts with thel concave portion of a locking ring 77, which is of suchinternal diameter as to pass freely over threads upon the outside of thesupplementary sleeve 74. .A lock nut 78 coacts the edges of the circularwith these threads and maintains the locky the grinder and itssupporting arbor can be swung freely up and down to the desiredposition. A somewhat limited degree of movement for adjusting can alsobe had in a horizontal plane (Fig. 2) on account of the looseness of pin79 in slot 80. When the grinder wheels are at the correct angle nut 78is tightened thereby clamping the supplementary outer sleeve 74 tightlyin The grinder wheels 60 and 61 may now be advanced or retracted to oraway from the knife by turning knurled knob 81 which is ri 'dly securedon the end of the sleeve mem r 72. A set screw 82 in the locking ring 72is ada ted to be screwed into contact with the s eeve member 72 and tolock the grinders against axial movement,

derstood that the sharpening grinder shown in Fig. 3 is provided withsimilar adjustments.

It will be understood that myinventionA may be modified in various waysas will occur to those skilled in the art.

I claim: f l 1. In a meat slicin machine having a rotary slicing knife,t e combination of a grinder box adjacent tothe cutting edge ofv theknife, an inwardly sphero-concave seat carried by a wall of said box andhaving an aperture, a sleeve Aextending through the aperture and havinga sphero-convex portion fitting said seat to permit angularadjustmento-f'the sleeve in at least two planes, means for securing thesleeve in adjusted position, and a grinder arbor rotatably mounted insaid sleeve. y 2; A grinder device for a slicing machine, comprising `incombination, a grinder box,

-means associated therewith to adj-ustably support a grinder arbortherein, Saidmeans comprising swivel devices carried. by awall of thebox, said swivel devices being provided With means for4 clamping thesame tightly to the wall of the box, after the adjustment has been made.

3. A grinder device for slicing machines', l

s 7. A grinder device for slicing machines,

comprising in combination, a grinder box, means associated therewith toadjustably support a grinder arbor therein, said means comprising swiveldevices/carried by a wall of the box, said swivel devices beinginteriorly threaded to permit the advancement or retraction of therelatively thereto.

4. A grinder device for slicing machines, comprising a grinder boxhaving a wall, one

grinder arbor axially lportion of. which is 'spherically curved,

' Y. ing wheel.

swivel devices cooperating with the said spherical portion of thegrinder box wall and adapted to be adjusted relatively theretol and tobe thereafter clamped in the desired position, and devicesvcarried bythe swivel devices for rotatably supporting a grind- 5. A inder devicefor slicing machines,

' comprising in combination, a grinder box having a spherical concaveand convex curvature on the inside and outside wall thereof, a sleevemember projecting through the wall and having a protuberance curved 'tocorrespond with the concave inner Wall of the 'grinder box, a lockingring having a portion thereof adapted to coperate with .the convex outerwall'of the said box, a lock nut upon the sleeve member adapted to abutagainst the end of the -locking ring and thereby clamp the sleeve memberinl a fixed the grinder box, a locking ring having a Y portion thereofadapted to coperate with the convex outer wall of the said box, a

lock nut upon the sleeve member adapted to abut a ainst the end of thelocking ring, l

and there y clamp the sleeve member in a fixed position relatively tothe walls of the grinder box, and means carried by the sleeve member forsupporting a grinder wheel, said means having provisions to permit thegrinder wheel to be advanced relatively to the walls of the box wherebythe wheel is brought into contact with the knife to be ground.

comprising in combination, a grinder box having a spherical concave and.convex curvature on the inside and outside wall thereof, a sleeve memberprojecting through ,the wall and having a protuberance having acurvature to correspond with the concave inner wall of the grinder box,said protuberance being slotted, a pin projecting from the inner wall ofthe grinder box into the aforesaid slot, a locking ring loosely mountedupon the sleeve member without the wall of the grinder box, said lockingring having a portion thereof adapted to coperate with the convex wallof the box, a locking nut threaded upon the sleeve member and adapted.to abut against the locking ring and clamp the sleeve member in alfixed position relatively to the walls of the grinder box, and meanscarried by the sleeve member for rotatably supporting a grinder wheel.

In testimony whereof I aiix my signature.

JosnPH HoPxiNsoN.

